Additive Inverses

Which statement best describes a situation in which opposite quantities combine to make 0?

• A hot air balloon used propane to fly 50 feet higher, then used weights to fly 50 feet lower.

• A farmer mowed 5 inches off his grass one week, then it grew 4 inches the next week.

• A child grew 1.5 inches taller one year, then 1.5 inches taller the next year.

• A scuba diver swam to a location 25 feet below sea level, then she swam 8 feet deeper.

Tags

CCSS.7.NS.A.1A

-7 - 2

• -9

• 9

• 5

• -5

Tags

CCSS.7.NS.A.1C

-4 - 4 =

• 8

• -8

• 0

• 1

Tags

CCSS.7.NS.A.1C

-22 + (-24) 

• 46

• -22

• 22

• -46

Tags

CCSS.7.NS.A.1C

-10 + 10

• 20

• 0

• -20

• 1,000,000

Tags

CCSS.7.NS.A.1B

−3 − (−2)

• -1

• 5

• 1

• -5

Tags

CCSS.7.NS.A.1C

What does the property of Additive Inverse state?

• That if you add a number and its opposite the answer will always equal zero.

• That if you add a number and its opposite the answer is always positive.

• That if you add a number and its opposite the answer is always negative.

Tags

CCSS.7.NS.A.1B

What is the additive inverse of 17?

• 0

• -17

• -4

• 1/17

Tags

CCSS.7.NS.A.1B

What is the additive inverse of -3?

• 0

• 3

• 6

• -1/3

Tags

CCSS.7.NS.A.1B

What is the additive inverse of -9?

• 1/9

• 0

• -1/9

• 9

Tags

CCSS.7.NS.A.1B